TY - JOUR
T1 - Halogen Vacancies Enable Ligand-Assisted Self-Assembly of Perovskite Quantum Dots into Nanowires.
AU - Pan, Jun
AU - Li, Xiyan
AU - Gong, Xiwen
AU - Yin, Jun
AU - Zhou, Dianli
AU - Sinatra, Lutfan
AU - Huang, Renwu
AU - Liu, Jiakai
AU - Chen, Jie
AU - Dursun, Ibrahim
AU - El-Zohry, Ahmed M.
AU - Saidaminov, Makhsud I.
AU - Sun, Hong-Tao
AU - Mohammed, Omar F.
AU - Ye, Changhui
AU - Sargent, E.
AU - Bakr, Osman
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OSR-2017-CRG-3380
Acknowledgements: This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2017-CRG-3380.
PY - 2019/9/17
Y1 - 2019/9/17
N2 - Interest has been growing in defects of halide perovskites in view of their intimate connection with key material optoelectronic properties. In perovskite quantum dots (PQDs), the influence of defects is even more apparent than in their bulk counterparts. By combining experiment and theory, we report herein a halide-vacancy-driven, ligand-directed self-assembly process of CsPbBr3 PQDs. With the assistance of oleic acid and didodecyldimethylammonium sulfide, surface-Br-vacancy-rich CsPbBr3 PQDs self-assemble into nanowires (NWs) that are 20-60 nm in width and several millimeters in length. The NWs exhibit a sharp photoluminescence profile (≈18 nm full-width at-half-maximum) that peaks at 525 nm. Our findings provide insight into the defect-correlated dynamics of PQDs and defect-assisted fabrication of perovskite materials and devices.
AB - Interest has been growing in defects of halide perovskites in view of their intimate connection with key material optoelectronic properties. In perovskite quantum dots (PQDs), the influence of defects is even more apparent than in their bulk counterparts. By combining experiment and theory, we report herein a halide-vacancy-driven, ligand-directed self-assembly process of CsPbBr3 PQDs. With the assistance of oleic acid and didodecyldimethylammonium sulfide, surface-Br-vacancy-rich CsPbBr3 PQDs self-assemble into nanowires (NWs) that are 20-60 nm in width and several millimeters in length. The NWs exhibit a sharp photoluminescence profile (≈18 nm full-width at-half-maximum) that peaks at 525 nm. Our findings provide insight into the defect-correlated dynamics of PQDs and defect-assisted fabrication of perovskite materials and devices.
UR - http://hdl.handle.net/10754/658085
UR - http://doi.wiley.com/10.1002/anie.201909109
UR - http://www.scopus.com/inward/record.url?scp=85074045609&partnerID=8YFLogxK
U2 - 10.1002/anie.201909109
DO - 10.1002/anie.201909109
M3 - Article
C2 - 31529587
SN - 1433-7851
VL - 58
SP - 16077
EP - 16081
JO - Angewandte Chemie (International ed. in English)
JF - Angewandte Chemie (International ed. in English)
IS - 45
ER -